CN101094611B - Ultrasonographic device - Google Patents

Ultrasonographic device Download PDF

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Publication number
CN101094611B
CN101094611B CN 200580045865 CN200580045865A CN101094611B CN 101094611 B CN101094611 B CN 101094611B CN 200580045865 CN200580045865 CN 200580045865 CN 200580045865 A CN200580045865 A CN 200580045865A CN 101094611 B CN101094611 B CN 101094611B
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direction
displacement
tissue
ultrasonic
unit
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CN 200580045865
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Chinese (zh)
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CN101094611A (en )
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Waki Koji
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Hitachi Medical Corp
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/13Tomography
    • A61B8/14Echo-tomography
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/02Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/02007Evaluating blood vessel condition, e.g. elasticity, compliance
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/08Detecting organic movements or changes, e.g. tumours, cysts, swellings
    • A61B8/0858Detecting organic movements or changes, e.g. tumours, cysts, swellings involving measuring tissue layers, e.g. skin, interfaces
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/46Ultrasonic, sonic or infrasonic diagnostic devices with special arrangements for interfacing with the operator or the patient
    • A61B8/461Displaying means of special interest
    • A61B8/463Displaying means of special interest characterised by displaying multiple images or images and diagnostic data on one display
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/46Ultrasonic, sonic or infrasonic diagnostic devices with special arrangements for interfacing with the operator or the patient
    • A61B8/467Ultrasonic, sonic or infrasonic diagnostic devices with special arrangements for interfacing with the operator or the patient characterised by special input means
    • A61B8/469Ultrasonic, sonic or infrasonic diagnostic devices with special arrangements for interfacing with the operator or the patient characterised by special input means for selection of a region of interest
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/48Diagnostic techniques
    • A61B8/485Diagnostic techniques involving measuring strain or elastic properties
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/48Diagnostic techniques
    • A61B8/488Diagnostic techniques involving Doppler signals
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88Sonar systems specially adapted for specific applications
    • G01S15/89Sonar systems specially adapted for specific applications for mapping or imaging
    • G01S15/8906Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
    • G01S15/8977Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using special techniques for image reconstruction, e.g. FFT, geometrical transformations, spatial deconvolution, time deconvolution
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52017Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
    • G01S7/52023Details of receivers
    • G01S7/52036Details of receivers using analysis of echo signal for target characterisation
    • G01S7/52042Details of receivers using analysis of echo signal for target characterisation determining elastic properties of the propagation medium or of the reflective target
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52017Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
    • G01S7/52053Display arrangements
    • G01S7/52057Cathode ray tube displays
    • G01S7/5206Two-dimensional coordinated display of distance and direction; B-scan display
    • G01S7/52063Sector scan display

Abstract

An ultrasonographic device includes: a probe (102) for transmitting/receiving an ultrasonic wave to/from an examinee; transmission means (120) for supplying a drive signal for wave transmission to the probe (102); reception means (122) for processing a reception signal outputted from the probe (102); a displacement calculation unit (105) for measuring displacement of a biological tissue accordingto the output signal from an ultrasonic wave transmission/reception unit (103); a color DSC (108) constituting an elastic image based on the displacement of the biological tissue; and an image display device (112) for displaying the elastic image. The ultrasonographic device further includes displacement search direction setting means (113B) for setting the search direction of the displacement inaccordance with the direction of displacement of the biological tissue. The color DSC (108) constitutes the elastic image according to the measurement value of displacement of the search direction.

Description

超声波诊断装置 The ultrasonic diagnostic apparatus

技术领域 FIELD

[0001] 本发明涉及对表现被检体的生物体组织的形变或硬度等性状的弹性图像进行拍摄的超声波摄像技术。 [0001] The present invention relates to the technical performance of the imaging ultrasonic elasticity image captured traits like living tissue of the subject strain or hardness.

背景技术 Background technique

[0002] 对超声波像进行拍摄的超声波诊断装置,通过向超声波探头供给送波用的驱动信号从而向被检体射出超声波,并通过超声波探头接受从被检体反射的反射回声,基于从超声波探头输出的接收信号来重构超声波图像进行显示。 [0002] The ultrasonic image ultrasonic diagnostic apparatus captured by supplying transmission wave drive signal to the ultrasonic probe so as to emit ultrasonic waves to a subject and receiving reflected echoes reflected from the subject by the ultrasound probe, based on the ultrasonic probe reconstructing the received signal output from the ultrasound image is displayed.

[0003] 作为这样的超声波诊断装置,公知对表现被检体的生物体组织的形变或硬度等性状的弹性图像进行拍摄的装置。 [0003] As such an ultrasonic diagnostic apparatus, it is known to exhibit an elasticity image of a living tissue such traits of the subject strain or hardness of the device photographed. 例如,超声波诊断装置取得向被检体施加压力时的与生物体组织相关的时间序列图像,获取所取得的时间序列图像的相关来测量生物体组织的位移,基于所测量的位移求得弹性数据(例如形变、弹性模量)来构成弹性图像。 For example, an ultrasonic diagnostic apparatus related to the acquired time-series images of living tissue when pressure is applied to the subject, acquire related time-series images acquired by measuring the displacement of the living tissue, based on the measured data to obtain the elastic displacement (e.g., strain, modulus of elasticity) to form the elastic image.

[0004] 在测量生物体组织的位移时,作为向被检体施加压力的方法,例如公知以下方法: 利用周期性对组织进行压迫的体动(body motion)(例如血管的脉动)作为压力源的方法; 手动将超声波探头按在被检体上进行压迫的方法;颤震器等压迫被检体的方法(例如专利文献JP2000-60853)。 [0004] When measuring the displacement of the living tissue, as a method for applying pressure to the object, for example, the following known methods: the use of the tissue compression periodic body motion (body motion) (e.g. pulsatile blood vessels) as a pressure source method; manual ultrasonic probe according to the method of performing compression on the subject; a vibrator or the like compression method is the subject (e.g., Patent Document JP2000-60853).

[0005] 可是,包括专利文献的以往的方式没有充分考虑对被检体赋予压力时生物体组织实际位移的方向(以下称作组织位移方向)和测量生物体组织的位移的弹性运算方向(以下称作位移探索方向)之间的关系。 [0005] However, conventional methods include patent document did not fully consider the actual displacement of the living body tissue when the subject is given a pressure (hereinafter, referred to as tissue displacement direction) and the measured elasticity calculation direction (the displacement of the living body tissue It referred to the relationship between the displacement search direction). 即,以往的位移探索方向例如被固定地设定在垂直于超声波收发面的方向,而组织位移方向根据针对生物体组织的压迫方向或压迫面的形状而流动地变化。 That is, the conventional fixed displacement search direction is set, for example, in a direction perpendicular to the surface of the ultrasonic transducer, and the tissue displacement direction of the flow varies depending on the shape or the direction of compression of the pressed surface against the living tissue. 因此,在测量生物体组织的位移时,在位移探索方向和组织位移方向之间存在偏差。 Therefore, when measuring the displacement of the living tissue, there is a deviation between the displacement search direction and the tissue displacement direction. 此时,在测量值中有可能包含因所述偏差而引起的误差。 At this time, it may contain an error due to the deviation caused in the measured value. 若基于这样的测量值构成弹性图像,则存在该弹性图像不能忠实地再现生物体组织的性状的情况。 If the case of constituting the elasticity image, the elasticity image characters not faithfully reproduce the living tissue is present based on such measurements.

发明内容 SUMMARY

[0006] 本发明的目的在于实现适用于对提高生物体组织位移的测量精度而更忠实地再现生物体组织的性状的弹性图像进行拍摄的超声波诊断装置、超声波摄像程序以及超声波摄像方法。 [0006] The object of the present invention is to realize an elastic image suitable for improving the measuring accuracy of the biological tissue displacement and more faithfully reproduce characters living tissue in an ultrasonic imaging diagnostic apparatus, an ultrasonic imaging method and an ultrasonic imaging procedure.

[0007] 为了实现上述目的,本发明的超声波诊断装置,包括:超声波探头,其与被检体之间收发超声波;发送单元,其向该超声波探头供给送波用的驱动信号;接收单元,其对从所述超声波探头输出的接收信号进行处理;弹性像构成单元,其基于由该接收单元的输出信号测量的生物体组织的位移,构成弹性图像;和显示单元,其显示所述弹性图像,该超声波诊断装置还具有:组织位移方向的检测单元,其检测所述生物体组织发生位移的方向;和位移探索方向设定单元,其在所述超声波探头的超声波束方向上设定所述生物体组织的位移的探索方向时,向所述发送单元或所述接收单元输出使所述超声波束与检测出的所述组织位移方向一致地偏转的指令,所述弹性像构成单元测量所述生物体组织在偏转后的超声波束方向的位移,构成所述弹性图像。 [0007] To achieve the above object, an ultrasonic diagnostic apparatus according to the present invention, comprising: an ultrasonic probe, an ultrasonic wave transceiver which is the subject; transmitting unit which supplies driving signals to the transmission waves using the ultrasonic probe; receiving unit the reception signal outputted from the ultrasound probe are processed; elasticity image constituting unit based on the displacement measured by the living tissue of the output signal of the receiver unit, constituting the elastic image; and a display unit that displays the elasticity image, the ultrasonic diagnostic apparatus further comprises: detecting means tissue displacement direction, a direction that detects displacement of the living body tissue; and the displacement search direction setting means for setting said ultrasonic beam in a biological direction of the ultrasonic probe when the search direction of displacement of the body tissue, to the transmitting unit or the receiving unit outputs a command to the displacement direction of the ultrasonic beam to the tissue detected consistently deflected constituting the elasticity image measurement unit of the biological tissue displacement direction of the ultrasonic beam is deflected to form the elastic image.

[0008] 根据本发明优选的实施方式,即使在位移探索方向相对于组织位移方向错开的情况下,也能使位移探索方向与组织位移方向一致。 [0008] According to a preferred embodiment of the invention, even if the displacement search direction with respect to the case where the tissue displacement direction of the offset, also enables the displacement search direction is consistent with the tissue displacement direction. 而且,若沿着位移探索方向测量生物体组织的位移,则沿着生物体组织实际位移的方向测量位移,从而提高了测量值的精度。 Further, when the living tissue of measuring the displacement along the displacement search direction, measuring the displacement along the direction of displacement of the actual living tissue, thereby improving the accuracy of the measured values. 通过基于这样的测量值构成弹性图像,从而降低弹性图像中产生的人为因素。 By constituting the elasticity image based on the measurement value, thereby reducing the elasticity of human factors generated in the image. 其结果获得忠实地再现生物体组织的性状的高品质的弹性图像。 As a result, the living tissue is obtained faithfully reproduce high-quality traits elasticity image.

[0009] 另外,本发明超声波摄像程序,其使控制用计算机执行以下步骤:与被检体的生物体组织发生位移的组织位移方向一致地设定所述位移的探索方向的设定步骤;向与所述被检体之间收发超声波的超声波探头供给送波用的驱动信号的步骤;对从所述超声波探头输出的接收信号进行处理的步骤;由所述接收处理后的信号对所述探索方向上的位移进行测量的步骤;基于所述位移的测量值构成弹性图像的步骤;和显示所述弹性图像的步骤。 [0009] Further, the present invention is an ultrasonic imaging procedure, causing the control computer to perform the following steps: setting step of setting a displacement search direction matches the tissue displacement with the displacement direction of the living tissue of the subject; the and said step of transmitting is supplied between the transmitting and receiving ultrasonic waves using ultrasound probe the subject of a driving signal; a step of processing the received signals outputted from the ultrasonic probe; signal is received by the process of the exploration displacement in the direction of the step of measuring; step constituting the elasticity image based on measurements of the displacement; and the step of displaying the elastic image.

[0010] 另外,本发明的超声波摄像方法包括:与被检体的生物体组织发生位移的组织位移方向一致地设定所述位移的探索方向的设定步骤;向与所述被检体之间收发超声波的超声波探头供给送波用的驱动信号的步骤;对从所述超声波探头输出的接收信号进行处理的步骤;由所述接收处理后的信号对所述探索方向上的位移进行测量的步骤;基于所述位移的测量值构成弹性图像的步骤;和显示所述弹性图像的步骤。 [0010] Further, the ultrasonic imaging method of the present invention comprising: a setting step of setting a displacement search direction matches the tissue displacement with the displacement direction of the living tissue of the subject; the body of the subject to the between the step of transmitting and receiving ultrasonic probe transmitting ultrasonic wave drive signal is supplied; step of processing the received signals outputted from the ultrasonic probe; signal is received by the processing of exploring the displacement measuring direction step; step based on the measured value of the displacement constituting the elasticity image; and a step of displaying the elastic image.

附图说明 BRIEF DESCRIPTION

[0011] 图1是表示应用了本发明的一实施方式的超声波诊断装置的构成的框图。 [0011] FIG. 1 is a block diagram showing configuration of an ultrasonic diagnostic apparatus according to an embodiment of the present invention.

[0012] 图2是表示图1的控制运算部的构成的图。 [0012] FIG. 2 is a diagram showing a configuration of the control operation unit 1 of FIG.

[0013] 图3是表示位移探索方向和组织位移方向不同时的弹性像摄像形态的图。 [0013] FIG. 3 shows the elasticity image are not simultaneously imaging FIG aspect displacement search direction and the tissue displacement direction.

[0014] 图4是表示位移探索方向和组织位移方向一致时的弹性像摄像形态的图。 [0014] FIG. 4 is a diagram when the elastic displacement search direction matches the tissue displacement direction of the image and the imaging aspect of FIG.

[0015] 图5是表示对探索方向的位移进行运算的处理的图。 [0015] FIG. 5 shows a displacement search direction is a calculation process of FIG.

[0016] 图6是表示针对各种血管的关心区域的设定例的图。 [0016] FIG. 6 is a diagram showing a setting example of a region of interest for a variety of blood vessels.

[0017] 图7是表示对组织位移方向进行自动检测的处理的图。 [0017] FIG. 7 shows a tissue displacement direction of the automatic detection process of FIG.

[0018] 图8是表示使设定在关心区域的位移探索方向与组织位移方向一致时的弹性像摄像形态的图。 [0018] FIG. 8 shows that the region of interest is set at the same displacement search direction to the tissue displacement direction of the elastic image pickup aspect of FIG.

[0019] 图9是表示对组织位移方向进行自动检测的其他处理的图。 [0019] FIG. 9 is a diagram for illustrating another tissue displacement direction of the automatic detection process.

[0020] 图10是表示显示超声波探头的倾斜方向与倾斜角度的引导信息的显示例的图。 [0020] FIG. 10 is a diagram showing a display example of guide information of the ultrasonic probe inclination direction and the inclination angle.

[0021] 图11是表示显示了引导信息的形态的图,其中引导信息表示在关心区域排列的角度信息。 [0021] FIG. 11 is a graph showing the guide shape information, wherein the guide information represents information arranged in the angle region of interest.

具体实施方式 detailed description

[0022] 参照附图,对应用了本发明的超声波诊断装置及超声波摄像方法的实施方式进行说明。 [0022] Referring to the drawings, embodiments of the application of the ultrasonic diagnostic apparatus and ultrasonic imaging method according to the present invention will be described. 图1是本实施方式的超声波诊断装置的框图。 FIG. 1 is a block diagram of an ultrasonic diagnostic apparatus according to the present embodiment. 图2是表示图1的控制运算部的构成的图。 FIG 2 is a diagram showing a configuration of the control operation unit 1 of FIG.

[0023] 如图1和图2所示,超声波诊断装置包括:在和被检体101之间收发超声波的超声波探头(以下称作探头102);向探头102供给送波用的驱动信号,并且处理从探头102输出的接收信号的超声波收发部103 ;基于根据超声波收发部103的输出信号而测量的生物体组织的位移来构成弹性图像的弹性图像构成单元;和作为显示弹性图像的显示单元的图像显示器112等。 [0023] As shown in FIG. 1 and FIG. 2, an ultrasonic diagnostic apparatus comprising: ultrasonic wave in the transceiver and the object 101 between the ultrasonic probe (hereinafter referred to as probe 102); transmitting wave drive signal is supplied to the probe 102, and processing the received signals outputted from the ultrasonic probe 102 of the unit 103; based on the displacement of the living tissue based on the output signal of the ultrasonic transmitting and receiving unit 103 constituting the elasticity image measurement to the elastic means constituting the image; and a display unit that displays an image of elasticity The image display 112 and the like. 这里所说的弹性图像构成单元包括:位移运算部105 ;形变运算部106 ; 弹性模量运算部107 ;彩色数字扫描变换器108 (以下称作彩色DSC108)等。 Here the image constituting said resilient means comprises: a displacement calculating unit 105; strain calculating unit 106; elasticity modulus calculating unit 107; a color digital scan converter 108 (hereinafter referred to as color DSC108) and the like. 另外,设有控制运算部113,其向超声波收发部103或弹性图像构成单元等输出控制指令。 Further, the control arithmetic unit 113 is provided for controlling the ultrasonic output instruction unit 103 or the like to an elastic image constructing unit.

[0024] 然后,如图2所示,应用于本实施方式的超声波诊断装置的控制运算部113安装有位移探索方向的设定单元113B。 [0024] Then, as shown, the control arithmetic unit according to the present embodiment is applied to the ultrasonic diagnostic apparatus 113 is attached to the 2 displacement search direction setting unit 113B. 在拍摄弹性图像时,位移探索方向的设定单元113B将测量被检体101的生物体组织的位移的弹性运算方向(以下称作位移探索方向)设定得与生物体组织实际位移的方向(以下称作组织位移方向)一致。 When capturing an elasticity image, setting means 113B of the displacement search direction to measure the elasticity calculation displacement direction of the living tissue 101 of the subject (hereinafter, referred to as displacement search direction) is set to the actual displacement direction of the living tissue is obtained ( hereinafter referred to as a tissue displacement direction) the same. 接着,位移探索方向的设定单元113B使弹性图像构成单元测量设定后的位移探索方向上的生物体组织的位移。 Next, the setting means 113B of the displacement search direction elastic displacement of the displacement image to explore the biological tissue in the direction of the constituent units of the measurement configuration.

[0025] 由此,即使在位移探索方向相对于组织位移方向错位的情况下,也能使位移探索方向与组织位移方向一致。 [0025] Accordingly, even when the displacement search direction with respect to the direction of displacement of the tissue displacement, the displacement search direction can be displaced in the same direction with the tissue. 因此,由于沿着生物体组织实际位移的方向测量位移,所以提高了测量值的精度。 Accordingly, since the direction of the displacement measuring actual displacement of the living tissue, thus improving the accuracy of measured values. 通过基于这样的测量值来构成弹性图像,从而能在弹性图像中忠实地再现生物体组织的性状。 By such a configuration based on the measured value of the elasticity image, which can faithfully reproduce characters living tissue in the elastic image.

[0026] 对本实施方式的超声波诊断装置更详细地进行说明。 [0026] The ultrasonic diagnostic apparatus according to the present embodiment will be described in more detail. 超声波诊断装置大致被划分为超声波收发系统、断层像摄像系统、弹性图像摄像系统、显示系统、控制系统。 The ultrasonic diagnostic apparatus generally divided into an ultrasonic system, a tomographic image imaging system, an elasticity image pickup system, a display system, control system.

[0027] 超声波收发系统具备探头102和超声波收发部103。 [0027] The system includes an ultrasonic probe 102 and ultrasonic transmitting and receiving portion 103. 探头102具有超声波收发面, 通过以机械或电子方式进行射束扫描而在和被检体101之间收发超声波。 Ultrasonic probe 102 having a surface, by performing beam scanning mechanically or electronically in the subject and received between the ultrasonic 101. 超声波收发面排列配置有多个振动器。 Ultrasonic wave transmitting a plurality of vibrators arranged. 各振动器相互变换电信号和超声波。 Each ultrasonic vibrator and an electric signal converted from each other. 另外,探头102在超声波收发面配置有压力传感器。 Further, a pressure sensor probe 102 is disposed in the ultrasonic wave transmitting. 压力传感器检测施加在超声波收发面上的压力并输出到压力测量部。 A pressure sensor for detecting a pressure applied to the surface of the ultrasonic transducer and outputs to the pressure measurement unit. 压力测量部将压力数据输出到形变运算部106或弹性模量运算部107。 The pressure measurement section outputs pressure data to the arithmetic unit 106 or the strain elasticity modulus calculating unit 107.

[0028] 如图2所示,超声波收发部103包括:发送单元120,其经收发单元121向探头102 供给送波用的驱动信号(脉冲);和接收单元122,其接收经收发单元121从探头102输出的接收信号。 [0028] As shown, the ultrasonic transmitting and receiving unit 1032 comprising: a transmitting unit 120, which is supplied to the wave transmission probe (102) via the transceiver unit 121 a driving signal (pulse) used; and receiving unit 122 which receives the transceiving unit 121 from reception signal output from the probe 102.

[0029] 超声波收发部103的发送单元120具有:将驱动探头102的振动器来产生超声波的驱动信号即送波脉冲以设定间隔进行发送的电路、和对从探头102射出的超声波送波射束的汇聚点的深度进行设定的电路。 [0029] The ultrasonic transmitting and receiving unit 103 transmitting unit 120 includes: a probe drive the vibrator 102 to generate ultrasonic drive pulse wave signal at set intervals Jisong transmission circuit and transmission of radio waves emitted from the ultrasonic probe 102 a circuit for setting the depth of the point of convergence of the beam. 这里,本实施方式的发送单元120按照选择经收发单元121供给脉冲的振动器组,并且沿组织位移方向扫描从探头102发送的超声波射束的方式,控制产生送波脉冲的定时。 Here, the transmission unit 120 according to the present embodiment, the vibrator group 121 selected by the transceiver unit supplying a pulse, and the scanning beam transmitted from the ultrasonic probe 102 in the tissue displacement direction, controlling the generation timing of the transmission pulse wave. 即,发送单元102通过控制该脉冲信号的延迟时间来控制超声波射束的扫描方向。 That is, the transmission unit 102 controls the scanning direction of the ultrasonic beam by controlling the delay time of the pulse signal.

[0030] 超声波收发部103的接收单元122具有:对经收发单元121从探头102输出的信号以规定的增益放大而生成RF信号即接收回声信号的电路、和对RF信号的相位进行调相相加并以时间序列生成RF信号数据的电路。 The receiving unit [0030] 103 of the ultrasonic transmitting and receiving unit 122 includes: a transceiving unit 121 via the gain signal output from the probe 102 at a predetermined amplifying circuit generates an RF signal that is received echo signal, the phase of the RF signal and a phase modulation phase was added and the time series data of the RF signal generating circuit. 这样的接收单元122对经收发单元121从探头102发送来的超声波射束而获得的接收回声信号赋予规定的延迟时间,使相位一致后进行调相相加。 Receiving an echo signal receiving unit 122 such ultrasonic beam transmitted from the probe 102 via the transceiver unit 121 obtained by imparting a predetermined delay time, so that phase modulation after phase coherent addition.

[0031] 断层像摄像系统具备断层像构成部104。 [0031] The tomographic image imaging system 104 includes a tomographic image constructing unit. 断层像构成部104具有信号处理部和黑白扫描转换器。 Tomographic image constructing unit has a signal processing section 104 and the monochrome scan converter. 信号处理部通过对从超声波收发部103输出的RF信号实施图像处理,从而构成与被检体101有关的浓淡断层像数据(例如,黑白断层像数据)。 The signal processing unit performs image processing by an RF signal output from the ultrasonic transmitting and receiving unit 103, thereby forming the subject 101 with associated tomographic image data (e.g., monochrome tomographic image data). 这里所说的图像处理是增益补正、对数压缩(logcompression)、检波、增强轮廓、滤波处理等。 Here is an image processing such as gain correction, logarithmic compression (LogCompression), detection, contour enhancement, filter processing. 黑白扫描转换器以帧为单位读出存储于帧存储器中的与被检体101有关的断层像数据,并与电视同步地输出读出的断层像数据。 Black and white scan converter is read out in frame units stored in the image data with the subject-related faults in the frame memory 101, and outputs the tomographic image data read out in synchronism with the television. 这里的黑白扫描转换器包括:将从信号处理部输出的断层像数据变换为数字信号的A/D转换器;以时间序列存储被数字化的多个断层像数据的帧存储器;输出从帧存储器读出断层像数据的指令的控制器。 Here black and white scan converter comprising: signal processing section output from the tomographic image data into a digital signal A / D converter; to store a plurality of time-series tomographic frame of digitized image data memory; read from the frame memory outputs tomographic image data controller instructions.

[0032] 弹性图像摄像系统具备:从超声波收发部103的输出侧分支设置的位移运算部105 ;形变运算部106 ;弹性模量运算部107 ;和彩色DSC108。 [0032] elasticity imaging system comprising: an output from the ultrasonic transmitting and receiving unit 103 is provided side branch displacement calculation unit 105; strain calculating unit 106; an elastic modulus calculating section 107; and a color DSC108.

[0033] 位移运算部105基于从超声波收发部103输出的RF信号数据来测量被检体101 的生物体组织。 [0033] The displacement calculation unit 105 based on the RF signal data output from the ultrasonic transmitting and receiving unit 103 to measure the living tissue 101 of the subject. 该位移运算部105具有RF信号选择部、计算部、和滤波部。 The displacement calculation portion 105 includes an RF signal selecting unit, calculation unit, and the filter unit.

[0034] 位移运算部105的RF信号选择部具有帧存储器和选择部。 [0034] RF signal selecting unit displacement calculation unit 105 has a frame memory and a selecting unit. 该RF信号选择部将从超声波收发部103输出的时间序列的RF信号数据存储于帧存储器,从存储后的RF信号帧数据群通过选择部选择1组即2个RF信号帧数据。 The RF signal selecting unit stores data from the RF signal output from the ultrasonic transceiver 103 time sequence in frame memory portion, i.e., a group selected two RF signal frame data from the RF signal frame data group by selecting the storage unit. 更具体而言,RF信号选择部按照图像帧速率顺次在帧存储器中确保从超声波收发部103输出的时间序列的RF信号数据。 More specifically, the RF signal to ensure the RF signal selecting unit sequentially from the time sequence data output from the ultrasonic transmitting and receiving unit 103 in the frame memory in accordance with the image frame rate. 然后, RF信号选择部根据从控制运算部113输出的指令,从存储于帧存储器的RF信号数据群当中选择作为第一数据的RF信号帧数据(N)。 Then, the RF signal selecting unit, selecting from the RF signal frame data group stored in the memory of the control command from among the output of the operation unit 113 as an RF signal frame data of the first data (N). 接着,RF信号选择部根据从控制运算部113输出的指令,从存储于帧存储器的RF信号数据群当中选择作为第二数据的RF信号帧数据(X)。 Subsequently, the RF signal selecting unit, selecting from the RF signal frame data group stored in the memory of the control command from among the output of the operation unit 113 as an RF signal frame data of the second data (X). 这里的RF信号帧数据(X)与RF信号帧数据(N)相比,是从时间上先存储于帧存储器的RF Here the RF signal frame data (X) and RF signal frame data (N) as compared to the time from the previously stored in the frame memory of the RF

信号帧数据群(Nl、N-2、N-3......NM)中选择出来的。 Selected from the signal frame data group (Nl, N-2, N-3 ...... NM) in. 另外,N、M、X是作为与RF信号帧 Further, N, M, X as the RF signal frame

数据相关联的索引号码的自然数。 Natural number index numbers associated with the data.

[0035] 位移运算部105的计算部根据1组RF信号帧数据求得生物体组织的位移探索方向上的位移。 [0035] The displacement calculation unit calculating section 105 is obtained by displacement in the displacement search direction according to a living tissue RF signal frame data group. 更具体而言,该计算部在通过RF信号选择部选择出的第一RF信号帧数据(N) 和第二RF信号帧数据(X)之间执行一维或二维的相关处理。 More specifically, the implementation of one or two dimensional correlation processing between the calculation unit in the selected RF signal by selecting the first RF signal frame data (N) and a second RF signal frame data (X). 例如,计算部通过采用块匹配法作为相关处理,从而求得与断层像的各像素对应的生物体组织的位移探索方向上的位移或移动向量(以下统称为位移)。 For example, the calculation section as a block matching method by using the correlation process, thereby to obtain a displacement or motion vector in the displacement search direction of the living tissue corresponding to each pixel of the tomographic image (hereinafter, referred to as displacement). 这里的移动向量是与位移的方向和大小相关的一维或二维位移分布。 Here is a motion vector or two-dimensional displacement distribution related to the displacement direction and magnitude. 块匹配法是指,将像素例如分为由NXN像素构成的块,着眼于关心区域内的块,从时间上过去的帧探求与关注后的块相近的块,参照该块通过预测编码即差分来决定标本值。 The block matching method is a method, for example, into the pixel blocks composed of NXN pixels, it focuses on a block within the region of interest, after the block close to the frame of interest to explore the time blocks from the past, by referring to the block predictive coding that is difference to determine a sample value.

[0036] 另外,位移运算部105的滤波部具有使从位移计算部输出的生物体组织的位移的偏差平均化的滤波电路,并实施用于顺畅执行后段的信号处理的预处理。 [0036] Further, the filter portion of the displacement calculation portion 105 has a living tissue displacement output from the displacement calculating the deviation of the average portion of the filter circuit, and the implementation of signal processing for preprocessing to smoothly perform a subsequent stage.

[0037] 形变运算部106对从位移运算部105输出的生物体组织的移动量例如位移AL进行空间微分而求出生物体组织的形变数据(S =AL/ AX)。 [0037] The strain calculating unit 106 from the movement amount of the body tissue of the output displacement of the displacement calculation portion 105 AL e.g. spatially differentiating the biological tissue deformation data is obtained (S = AL / AX). 另外,弹性模量运算部107通过用位移的变化除压力变化,从而来求出生物体组织的弹性模量数据。 Further, the elastic modulus calculating section 107 in addition to a pressure change with changes in displacement, thereby obtaining the elastic modulus of the biological tissues data. 例如,弹性模量运算部107由压力测量部求得施加于探头102的超声波收发面的压力AP。 For example, the elastic modulus calculating section 107 to obtain a pressure AP is applied to the surface of the ultrasonic probe 102 by the pressure measuring section. 接着,弹性模量运算部107基于压力AP和位移/AL,例如求得杨氏模量Ym(Ym= ( AP)/( AL/L)作为弹性模量数据。这样,弹性模量运算部107通过对应于断层像的各点,分别求得弹性模量数据, 从而获得二维的弹性图像数据。另外,杨氏模量是指,施加于物体的单纯拉伸应力和与拉伸平行产生的形变的比。另外,包括形变数据和弹性模量数据适当统称为弹性数据,将以帧为单位的弹性数据适当称为弹性帧数据。 Next, elasticity modulus calculating unit 107 based on the pressure and displacement AP / AL, determined for example Young's modulus Ym (Ym = (AP) / (AL / L) as the elastic modulus data. Thus, elasticity modulus calculating unit 107 through the point corresponding to the tomographic image, the elastic modulus data were determined, to thereby obtain a two-dimensional elasticity image data. Further, the Young's modulus means a simple tensile stress applied to the object and stretching parallel to the generated deformation ratio. Further, the data comprising a strain and elastic modulus data appropriately referred to as elasticity data, the elastic frame data unit will be appropriately referred to as elastic frame data.

[0038] 彩色DSC108基于从形变运算部106或弹性模量运算部107输出的弹性数据,构成与被检体101的生物体组织相关的彩色弹性图像。 [0038] DSC108 color elastic image based on the color data output from the elasticity calculation unit 106 strain or elasticity modulus calculating unit 107, configured associated with living tissue 101 of the subject. 例如,彩色DSC108具有弹性数据处理部、彩色扫描转换器、和帧存储器。 For example, a color DSC108 elastic data processing section, a color scan converter, and a frame memory. 弹性数据处理部将从形变运算部106或弹性模量运算部107输出的弹性帧数据存储于帧存储器。 The data processing unit from the elastic deformation of the elastic frame data calculation unit 106 or the storage elasticity modulus calculating unit 107 in the output frame memory. 弹性数据处理部根据从控制运算部113输出的指令,对从帧存储器读出的弹性帧数据实施图像处理。 The elastic data processing section from the output of the operation command from the control unit 113 of the elastic frame data read out from the frame memory of the image processing embodiment.

[0039] 彩色DSC108的彩色扫描转换器是基于色彩图对从弹性数据处理部输出的弹性帧数据执行色调变换处理的色调变换部。 [0039] Color DSC108 color scan converter is based on a color tone conversion unit performs tone conversion processing of FIG elasticity frame data outputted from elasticity data processing unit. 这里的色彩图是使由光的三原色即红(R)、绿(G)、 蓝⑶所决定的色泽信息与弹性数据的大小相关联的图。 FIG herein is that the color of light from the three primary colors, i.e., red (R), green (G), the size of the information associated with the blue color ⑶ FIG determined by the elastic data. 另外,红(R)、绿(G)、蓝⑶分别具有256灰度,随着接近255的灰度,表现为高亮度,随着接近0灰度,表现为低亮度。 In addition, red (R), green (G), and blue each have 256 gray ⑶, as approaching 255 gradation, it showed high brightness, as it approaches 0 gray, exhibit a low luminance.

[0040] 例如,彩色DSC108的彩色扫描转换器在从弹性数据处理部输出的形变数据小时变换为红色代码,并且在形变数据大时变换为蓝色代码并存储于帧存储器。 [0040] For example, the color DSC108 color scan converter hour deformation data outputted from elasticity data processing unit is converted into a red code, and large deformation transform code and blue data stored in the frame memory. 然后,彩色扫描转换器根据控制指令从帧存储器与电视同步地读出弹性帧数据并显示于图像显示器112。 Then, the color scan converter control command read from the frame memory in synchronization with the television and the elastic frame data displayed on the image display 112. 基于这里的色调变换后的弹性帧数据的弹性图像是以红色系描绘生物体组织硬的部位(例如肿瘤),以蓝色系描绘硬的部位周围的部位。 Elastic image based on the elastic frame data after the tone conversion is here depicted portion around the red portion of the hard body tissue (e.g. tumor), which is depicted in blue hard region. 通过视觉辨认这样的弹性图像,从而能在视觉上例如掌握肿瘤的宽度或大小。 Such elasticity image identified visually, so that it can grasp the width or size of a tumor, for example, visually. 另外,彩色DSC108经控制运算部113连接键盘等操作部114。 Further, the color DSC108 unit 113 is connected via the control arithmetic operation unit 114 such as a keyboard. 根据经操作部114输入的指令,彩色DSC108可以改变色彩图的颜色等。 According to an instruction via the operation input portion 114, the color can change the color of the color map DSC108 the like.

[0041] 显示系统包括图形部(graphic section) 109、色标产生部110、图像合成部111、 和图像显示器112等。 [0041] The graphics display system includes a portion (graphic section) 109, color code generating section 110, the image synthesis section 111, image display 112 and the like. 图形部109生成断层像或弹性图像以外的图像(例如,画面的框架或图形用户界面)。 Graphics portion 109 generates a tomographic image (e.g., picture frames or graphical user interface) other than the image or the elastic image. 色标产生部110生成色泽的变化随着阶段而显示的色标。 Changes color generating unit 110 generates a color with the color displayed by the stage. 这里的色标可以对应于彩色DSC108的色彩图。 Here color may correspond to the color map of the color DSC108.

[0042] 图像合成部111将从断层像构成部104输出的断层像、从彩色DSC108输出的弹性图像、从图形部109输出的图像、从色标产生部110输出的色标合成而生成一个超声波像。 [0042] The tomographic image constructing unit 104 outputs the image synthesizing portion 111 from the tomographic image, the color elasticity image from DSC108 output from the image pattern output unit 109, the output 110 from the color synthesis unit to generate color generating an ultrasonic like. 例如,图像合成部111具有帧存储器、图像处理部和图像选择部。 For example, the image synthesizing section 111 has a frame memory, an image processing unit and image selecting unit. 这里的帧存储器存储从断层像构成部104输出的断层像、从彩色DSC108输出的弹性图像、从图形部109输出的框架图像、从色标产生部110输出的色标。 Here the frame memory stores tomographic image from the tomographic images constituting the output unit 104, a color elasticity image from DSC108 output, the frame image output from the graphic unit 109, the output 110 from the color of the color patch generation portion. 图像处理部根据控制指令从帧存储器读出断层像或弹性图像,对在断层像或弹性图像的相同坐标系下相互对应的像素,以设定比例相加并合成该各像素的亮度信息、色泽信息。 The image processing unit reads out the control command elasticity image or tomographic image from the frame memory, pixels at the same coordinates of the tomographic image or the elasticity image corresponding to each other, and to set the addition ratio for each pixel of the synthesized luminance information, color information. 即,图像处理部在同一坐标系中使弹性图像相对地重叠于断层像上。 That is, the image processing unit in the same coordinate system relative to the manipulation elastic image superimposed on the tomographic image. 图像选择部根据控制指令从存储于帧存储器中的图像群中选择在图像显示器112上显示的图像。 Image selecting unit to select an image displayed on the image display 112 from the image group stored in the frame memory in accordance with a control command. 图像显示器112具有对从图像合成部111输出的图像数据进行显示的监视器等。 The image display 112 having a monitor for displaying the image data output from the image synthesizing unit 111 from the other.

[0043] 如图2所示,控制系统具备控制运算部113和操作部114等。 [0043] 2, the control system includes a control unit 113 and the arithmetic operation unit 114 and the like. 控制运算部113包括:基本控制单元113A、位移探索方向的设定单元113B、组织位移方向的检测单元113C、关心区域的设定单元113D、关心区域的角度修正单元113E、和引导信息的生成单元113F。 Control operation unit 113 includes: a basic control means 113A, the setting means 113B of the displacement search direction, the detecting unit 113C tissue displacement direction, the region of interest setting unit 113D, the region of interest angle correction unit 113E, and the guide information generating means 113F.

[0044] 基本控制单元113A对超声波收发系统、断层像摄像系统、弹性图像摄像系统、显示系统输出各种控制指令。 [0044] The basic control unit 113A of the ultrasonic system, a tomographic image imaging system, an elasticity image pickup system, a display system outputs various control instructions. 位移探索方向的设定单元113B在位移探索方向相对于组织位移方向错开时,进行重新设定使位移探索方向与组织位移方向一致。 Displacement search direction setting means 113B of the displacement search direction with respect to the tissue displacement direction is shifted, so that re-setting the displacement search direction and the tissue displacement in the same direction. 这里的位移探索方向是指,在测量被检体101的生物体组织的位移时应成为基准的弹性数据运算方向。 Displacement search direction herein means, when the displacement measured by the living body tissue of the subject elasticity data calculator 101 becomes a reference direction. 组织位移方向的检测单元113C对在对被检体101的生物体组织施加压力时生物体组织实际位移的组织位移方向进行检测。 Detecting means 113C of the tissue displacement direction of the tissue displacement direction when pressure is applied to the living tissue 101 of the subject living tissue actual displacement is detected. 关心区域的设定单元113D根据经操作部114输入的指令,在显示于图像显示器112的断层像设定关心区域(R0I:Region Of Interest) 0关心区域的角度修正单元113E通过使由设定单元113D设定的关心区域旋转,从而来修正关心区域的设定角度。 Interest region setting means 113D according to an instruction via the operation input portion 114, the tomographic image displayed on the display 112 is set as a region of interest (R0I: Region Of Interest) 0 angle region of interest by the correction unit setting means 113E 113D set the rotation region of interest, thereby correcting the setting angle region of interest. 引导信息的生成单元113F生成表示位移探索方向与组织位移方向一致时的探头102的倾斜的引导信息等并显示于图像显示器112。 113F guide information generating means generates the guidance information when the inclination of the probe displacement search direction matches the tissue displacement direction 102, and the like displayed on the image display 112. 另外,操作部114具有作为各种设定用的接口的键盘或指示器等。 Further, the operation unit 114 has various settings and the like as an interface with a keyboard or a pointer.

[0045] 下面,参照附图对本实施方式的控制运算部113进行更详细的说明。 [0045] Next, with reference to the accompanying drawings of the control arithmetic unit 113 according to the present embodiment will be described in more detail.

[0046](实施例1) [0046] (Example 1)

[0047] 本实施例是半自动指定组织位移方向,并在与该组织位移方向一致设定的位移探索方向上使超声波束偏转的例子。 Examples [0047] The present embodiment is a semi-automated tissue specified displacement direction, and the ultrasonic beam is deflected in the direction of displacement of the displacement search direction set in the same organization. 图3是表示位移探索方向与组织位移方向之间产生偏差的形态的示意图。 FIG 3 is a schematic diagram showing the deviation between the generated aspect displacement search direction to the tissue displacement direction. 图4是表示使位移探索方向与组织位移方向一致的形态的示意图。 FIG 4 is a schematic diagram showing that the displacement search direction and the tissue displacement direction consistent form.

[0048] 如图3所示,探头102的超声波收发面201a与被检体101的例如体表接触。 [0048] As shown, the ultrasonic wave transmitting probe 102 is, for example, a body surface 201a in contact with the subject 101 3. 这里的位移探索方向206a〜206h被初始设定在由探头102收发的超声波束方向、即与超声波收发面201a大致垂直的方向。 206a~206h displacement search direction is initially set here by the ultrasonic beam direction of the probe 102 of the transceiver, the ultrasonic transmitting and receiving surface 201a that is substantially vertical orientation. 另外,设被检体101内的血管(blood vessel) 204以相对于超声波收发面201a倾斜的直线状存在。 Further, provided is a blood vessel (blood vessel) inside the subject 101 with respect to the ultrasonic transducer 204 to the inclined surface 201a linearly exists. 而且,如图虚线所示,应获得弹性图像的生物体组织的关心区域203被设定成长边部相对于超声波收发面201a大致平行的矩形即长方形。 Further, as shown in broken lines, should be obtained elasticity image region of interest of the living tissue 203 is set with respect to the long side portion 201a is substantially a rectangular plane that is parallel to the ultrasonic rectangle. 另外,这里的关心区域203根据经操作部114输入的指令而设定于在图像显示器112显示的断层像上。 Further, where the region of interest via the operation unit 203 according to an instruction set 114 to the input on a tomographic image display 112 displays the image.

[0049] 在图3所示的形态中,通过血管204的周期性脉动,压迫血管204周边的组织。 [0049] In the embodiment shown in FIG. 3 by the periodic pulsation of the blood vessel 204, pressure vessel 204 surrounding tissue. 其周边组织中关心区域203内的生物体组织的位移通过位移运算部205测量。 205 by measuring the displacement of the living tissue displacement calculation portion 203 in the area of ​​the peripheral tissue of interest. 基于位移的测量值,通过形变运算部106或弹性模量运算部107算出弹性数据。 Based on the measured value of the displacement, the elasticity data 107 is calculated by the strain computing section 106 or elasticity modulus calculating unit. 然后基于弹性数据的计算值,通过彩色DSC108构成弹性图像。 Then based on the calculated value of the elastic data constituting a color elasticity image by DSC108.

[0050] 但是,在图3所示的例子中,在测量关心区域203内的生物体组织的位移时,位移探索方向206a〜206h是超声波束方向即关心区域203的短边方向,而基于血管204脉动的组织位移方向205a〜205j是血管204的径向。 [0050] However, in the example shown in FIG. 3, when the displacement of the living tissue 203 within the measurement region of interest, the displacement search direction 206a~206h ultrasonic beam direction, i.e., short side direction of the region of interest 203, and based on the blood vessel 204 pulsation displacement direction 205a~205j vascular tissue 204 radially. 由此,位移探索方向206a〜206h和组织位移方向205a〜205j以规定角度交叉。 Thus, the displacement search direction and the tissue displacement direction 205a~205j 206a~206h cross at a predetermined angle. 即,在位移探索方向206a〜206h和组织位移方向205a〜205j之间产生偏差。 That is, a deviation is generated between the displacement search direction and the tissue displacement direction 206a~206h 205a~205j. 若在这样的状态下测量生物体组织的位移,则存在例如因对所述偏差进行修正的运算精度的限制,而可能导致位移测量值中包含误差。 When measuring the displacement of the living tissue in this state, there is, for example, by limiting the offset correction calculation accuracy, which may result in displacement measurement value contains an error.

[0051] 因此,本实施例,通过半自动地修正关心区域203的角度,从而与组织位移方向一致地指定位移探索方向。 [0051] Accordingly, the present embodiment, the semi-angle correction region of interest 203, thereby uniformly specified displacement search direction to the displacement direction of the organization. 更具体而言,如图3所示,操作者一边视觉辨认在图像显示器112 上显示的断层像,一边经操作部114,分别在血管204的上侧缘部和关心区域203的短边部相交的两处指定基准点(以下称作交叉点207、208)。 More specifically, as shown in FIG. 3, while the operator visually recognize the tomographic image displayed on the image display 112, while the operating portion 114, respectively, by the intersection of the short side portion of the upper edge area of ​​the vessel of interest 204 and 203 the two specified reference point (hereinafter, referred to as intersection 207, 208). 另外,也可以取代上侧缘部而指定下侧缘部与短边部的交叉点。 Further, substitution may be designated the upper edge portion and side edge intersection portion at the short side. 另外,交叉点207、208也可以利用断层像的亮度设定。 Further, intersection point 207 may be set using the luminance of a tomographic image. S卩,在图像显示器112的画面中,血管204的壁面以高亮度显示。 S Jie, the image display screen 112, the blood vessel wall 204 is highlighted. 控制运算部113利用该亮度特性, 将血管204的壁面形成的高亮度线和关心区域203的交点设定为交叉点207、208。 Control operation unit 113 using the luminance characteristic, the high luminance line intersection formation vessel wall surface 204 and 203 region of interest 207 set intersection.

[0052] 指定交叉点207、208后,如图4所示,组织位移方向的检测单元113C将与连接交叉点207、208间的线段正交的方向判断为组织位移方向。 [0052] After the specified intersection 207, as shown, the tissue displacement direction detecting unit 113C to the connecting direction orthogonal to the line segment between the intersection points 207, 208 4 determines tissue displacement direction. 即,在本实施例中,通过指定交叉点207、208,半自动地检测组织位移方向。 That is, in the present embodiment, by specifying the intersection point 207, semi-automatically detect the displacement direction of the organization.

[0053] 然后,关心区域的角度修正单元113E对关心区域203进行旋转修正,以使连接交叉点207、208间的线段的正交方向和关心区域203的短边方向的偏差为0。 [0053] Then, the region of interest angle correcting means 113E of the region of interest 203 for the rotation correction, so that the deviation in the orthogonal direction intersecting line segment connecting between the points 207, 208 and 203 of the short-side direction of the region of interest is 0. S卩,关心区域的角度修正单元113E重新设定短边方向与连接交叉点207、208间的线段的正交方向一致的关心区域308。 S Jie, the region of interest angle correction unit 113E resets the short-side direction orthogonal to the same line segment 207, 208 is connected between the direction of the intersection area 308 of interest. 接着,位移探索方向的设定单元113B通过使位移探索方向206a〜206h与关心区域308的短边方向一致地进行修正,由此指定新的位移探索方向306a〜306f。 Next, the displacement search direction setting unit 113B uniformly corrected by the short-side direction so that the displacement search direction 206a~206h region of interest 308, thereby specifying the new displacement search direction 306a~306f. 超声波收发部103与位移探索方向306a〜306f —致地使超声波束偏转。 The ultrasonic transceiver unit 103 and the displacement search direction 306a~306f - induced deflection of the ultrasonic beam. 然后,位移运算部105基于沿着位移探索方向306a〜306f罗列的接收信号,测量位移探索方向306a〜306f 上的生物体组织的位移。 Then, the displacement calculation unit 105 based on the reception signal along the displacement search direction 306a~306f listed, measuring the displacement of the living tissue to explore the displacement direction 306a~306f.

[0054] 图5是表示对位移探索方向与组织位移方向一致时的生物体组织的位移进行测量的例子的图。 [0054] FIG. 5 shows a displacement of the displacement body tissue exploration when the tissue displacement direction coincides with the direction of the measurement example of FIG. 图5所示的关心区域501是通过关心区域的角度修正单元113E对原来的关心区域进行了角度修正而得到的平行四边形。 Region of interest 501 shown in FIG. 5 is a corrected angle obtained by the parallelogram 113E of the original region of interest region of interest angle correction unit. 这里的组织位移方向是指沿着关心区域501 的倾斜侧边的方向、即在关心区域501中箭头所示的方向。 Tissue displacement direction here means a direction along the inclined side edge 501 of the region of interest, i.e. in the region of interest 501 in the direction shown by the arrow. 位移探索方向通过位移探索方向的设定单元113B而被重新设定为沿着关心区域501的倾斜侧边的方向。 Displacement search direction is reset to the region of interest 501 along a direction inclined side by the displacement setting unit 113B exploration direction. 总而言之,这里的关心区域501中,位移探索方向与组织位移方向一致。 All in all, here in the region of interest 501, the same displacement direction and organization to explore the direction of displacement.

[0055] 首先,超声波收发部103通过经探头102与位移探索方向一致地收发超声波束,从而获得时间序列的接收信号。 [0055] First, an ultrasonic transceiver 102 and 103 in unison displacement search direction by transmitting and receiving ultrasonic beams through the probe, to thereby obtain a reception signal time series. 接着,位移运算部105选择当前取得的RF信号帧数据(N)502 作为第一数据。 Next, the displacement calculation unit 105 selects RF signal frame data (N) as the first 502 and the currently obtained data. 这里的RF信号帧数据(N)502是按照关心区域501的侧边的倾斜方向、即位移探索方向罗列的信号群。 Here the RF signal frame data (N) 502 in accordance with the inclination direction of the side edge region 501 of interest, i.e., the displacement direction of the exploring signal group listed. 位移运算部105也选择在时间上过去取得的RF信号帧数据(X)503。 Displacement calculation unit 105 select RF signal frame data (X) 503 in time past achievements. 这里的RF信号帧数据(X)503也是按照关心区域501的侧边的倾斜方向、即位移探索方向罗列的信号群。 Here the RF signal frame data (X) 503 is also in accordance with the inclination direction of the side edge region 501 of interest, i.e., the displacement direction of the exploring signal group listed. 而且,位移运算部105通过对RF信号帧数据(N)502和RF信号帧数据(X)503执行相关处理,从而来测量位移探索方向上的生物体组织的移动量即位移量。 Further, the displacement calculation unit 105 by performing a correlation processing on the RF signal frame data (N) 502 and the RF signal frame data (X) 503, thereby measuring the amount of movement of the biological tissue in the displacement search direction i.e. displacement amount.

[0056] 根据本实施例,如图2和图3所示,即使位移探索方向206a〜206h相对于组织位移方向205a〜205j错开的情况下,也可重新设定与组织位移方向205a〜205j —致的位移探索方向306a〜306f。 [0056] According to the present embodiment, as shown in FIGS. 2 and 3, even if the displacement search direction 206a~206h case of offset, can be re-set with respect to the displacement direction of the tissue displacement direction 205a~205j tissue 205a~205j - displacement search direction consistent 306a~306f. 由此,若沿着位移探索方向306a〜306f测量生物体组织的位移,则可沿着生物体组织实际位移的方向测量位移,所以提高了位移测量值的精度。 Thus, when the living tissue 306a~306f measuring the displacement along the displacement search direction, the direction of the living tissue can actually measuring the displacement of the displacement, thus improving the accuracy of the displacement measurements. 基于这样的测量值构成弹性图像,从而降低了弹性图像中产生的人为因素(art fact)。 Based on such measurement values ​​constituting the elasticity image, thereby reducing the human factor (art fact) elasticity image generated. 其结果,不受压迫生物体组织的方向或压迫生物体组织的面的形状等限制,能获得忠实再现生物体组织的形变或硬度等的性状的高品质弹性图像。 As a result, the restricting surface shape from oppression or pressure direction of the living tissue of the living tissue can be obtained a high-quality elasticity image faithful reproduction of living tissue such traits strain or hardness.

[0057] 例如,公知甲状腺部位由于颈动脉的拍动而使周边组织产生形变。 [0057] For example, well-known since the carotid artery portion thyroid flapping deformed the surrounding tissue. 由此,在拍摄与甲状腺部位相关的弹性像时,测量因颈动脉的拍动而形变的周边组织的位移,可基于位移的测量值构成弹性像。 Accordingly, in the shooting site associated with thyroid elasticity image, measuring the displacement of surrounding tissue due to flapping of the carotid artery and the deformation of the elastic image may be configured based on the measured displacement value. 但是,颈动脉相对于探头102的超声波收发面倾斜存在时等,会在位移探索方向和组织位移方向之间产生偏差。 However, carotid inclined with respect to the presence of the ultrasonic wave transmitting probe 102 and the like, a deviation is generated between the displacement search direction and the tissue displacement direction. 由于根据本实施例,通过使位移探索方向与组织位移方向一致,从而可以提高生物体组织的位移的测量精度,所以能获得有用的临床数据。 Since the embodiment according to the present embodiment, by exploring the displacement direction coincides with the direction to the tissue displacement, which can improve the measurement precision of the displacement of the living tissue, it is possible to obtain clinically useful data.

[0058] 图6是表示对各种血管设定关心区域的状态例子的图。 [0058] FIG. 6 is a diagram showing an example of a state of the region of interest in various vascular set of FIG. 图6(A)以及图6(C)表示血管相对于超声波收发面倾斜存在的状态。 FIG 6 (A) and FIG. 6 (C) indicates the presence of a blood vessel with respect to the inclined state of the ultrasonic surface. 该情况下关心区域(R0I)被设定成其短边方向相对于血管的长度方向垂直。 Region of interest (R0I) in this case is set with respect to the short-side direction perpendicular to the longitudinal direction of the vessel. 然后,与关心区域的短边方向即组织位移方向一致地设定位移探索方向。 Then, with the short side direction of the region of interest that is set to be identical tissue displacement direction of displacement search direction. 即,位移探索方向与组织位移方向一致。 That is, the displacement in the same direction and organization to explore the direction of displacement. 另外,在图6(C)所示的情况下,由于血管相对于图6(A)所示的血管向相反方向倾斜,所以通过向图6(A)的情况的相反方向旋转修正关心区域,从而使位移探索方向与组织位移方向一致。 Further, in the case shown in FIG. 6 (C), since the blood vessel with respect to FIG. 6 (A) shown in a blood vessel is inclined in the opposite direction, so that through the direction opposite to the case of FIG. 6 (A) of rotation of the correction region of interest, so that the direction coincides with the direction of displacement explore and tissue displacement. 图6(B)表示血管相对于超声波收发面平行存在的状态。 FIG 6 (B) indicates the presence of a blood vessel with respect to the state of the ultrasonic parallel surfaces. 在该情况下,由于关心区域的短边方向即位移探索方向与组织位移方向一致,所以不需要进行关心区域的角度修正。 In this case, since the short-side direction, i.e., the displacement of the region of interest to explore the tissue displacement direction coincides with the direction, there is no need for correction of the angle of the region of interest.

[0059] 另外,图6(D)表示血管相对于超声波收发面弯曲存在的状态。 [0059] Further, FIG. 6 (D) indicates a state with respect to the blood vessel ultrasonic curvature exist. 在该情况下,关心区域被设定成具有与血管的曲部的曲率对应的弧的扇形。 In this case, the region of interest is set to a sector having a curved portion with a curvature corresponding to an arc of a blood vessel. 位移探索方向的设定单元113B重新设定与关心区域的弧的切线垂直的方向作为位移探索方向。 Displacement search direction setting unit 113B resets the region of interest and the arc tangent of a direction perpendicular to a displacement search direction. 超声波收发部103根据关心区域的弧渐渐变更超声波束方向的同时,收发超声波束。 The ultrasonic transmitting and receiving unit 103 while gradually changing the arc region of interest in the ultrasound beam direction, transmitting and receiving ultrasonic beams. 由此,即使血管相对于超声波收发面弯曲存在的情况下,也可按照因血管的弯曲引起的组织位移方向的变化使位移探索方 Accordingly, even with respect to the case where the blood vessel ultrasonic curvature exists, may change according to the displacing direction explore the direction of displacement of vascular tissue due to bending caused by

向一致。 To the agreement.

[0060] 该扇形的关心区域是通过连接多个微小矩形关心区域而生成。 [0060] The fan-shaped region of interest by a plurality of minute rectangular regions of interest and generating the connection. 例如,如图6(D)右图所示,通过使用与图2、图3、图6(A)〜图6(C)同样的方法,从而使三个微小矩形关心区域R0I1〜R0I3等的短边方向和血管的切线方向一致,并且使长度方向和与血管切线垂直的方向一致,沿着血管分割微小矩形关心区域R0I1〜R0I3而设定多个。 For example, as shown in FIG. 6 (D) on the right, by using the same method as in FIG. 2, FIG. 3, FIG. 6 (A) ~ FIG. 6 (C), so that three minute rectangular regions of interest like R0I1~R0I3 short-side direction and the tangential direction coincides blood vessels, and the blood vessel in the longitudinal direction and the same direction perpendicular to the tangent, the minute dividing the rectangular region of interest along the vessel plurality R0I1~R0I3 set. 这样遍及扇形的关心区域整体设定多个微小矩形关心区域。 Such fan-shaped region of interest throughout the whole set multiple small rectangular regions of interest. 另外,该微小矩形关心区域被设定在可以忽略血管的曲率形状的范围。 Further, the minute rectangular regions of interest are set in the shape of curvature of the blood vessel negligible range.

[0061] 然后,与各微小矩形关心区域R0I1、R0I2、R0I3等的长度方向即组织位移方向一致地设定位移探索方向。 [0061] Then, with the longitudinal direction of the minute rectangular regions of interest R0I1, R0I2, R0I3 like tissue displacement direction, i.e., the displacement search direction set to be identical. 由此,在各微小矩形关心区域能够使位移探索方向和组织位移方向一致。 Thus, each small rectangular region of interest can be matched to explore the direction of displacement direction and displacement organizations. 即,能够遍及整个扇形关心区域使位移探索方向和组织位移方向一致。 That is, the fan-shaped region of interest throughout the organization and direction of displacement explore displacement in the same direction. 根据这样的关心区域的设定方法,不管血管形状是扇形还是多么复杂的形状都能应对。 According to such a method of setting the region of interest, regardless of the shape of the vessel is or how the sector can cope with complex shapes.

[0062] 另外,在本例中,将血管204的拍动作为压力源,取得通过血管204的拍动进行压迫时的生物体组织的弹性图像,但并非限定于这样的方式。 [0062] Further, in the present embodiment, the vessel 204 is to make an action of a pressure source, the biological tissue elasticity image is acquired during compression is performed by the flapping of the vessel 204, but not limited to such a manner. 例如,即使在用手动按压压迫与被检体101的体表接触的探头102的方式、用与被检体101的体表接触的颤震器进行压迫的方式也能应用本发明。 For example, even if the compression mode the probe manually pressed into contact with the subject surface 101 and 102, by way of performing compression with a vibrator in contact with the body surface of the subject 101 can also be applied to the present invention. 总而言之,在位移探索方向和组织位移方向之间产生偏差的情况下应用本发明即可。 In summary, the present invention is applied to a case where the deviation is generated between the displacement search direction and the tissue displacement direction.

[0063](实施例2) [0063] (Example 2)

[0064] 本实施例与使超声波束本身偏转的实施例1的不同点在于,在使位移探索方向和组织位移方向一致时,仅使在关心区域内预先设定的弹性运算方向即关心区域内的位移探索方向与组织位移方向一致。 Is different from Example 1 [0064] The present embodiment is deflected ultrasonic beam itself is that, when the displacement search direction and the tissue displacement direction coincides, only the elasticity calculation direction within a predetermined region of interest within the region of interest, i.e., explore the direction of displacement and tissue displacement in the same direction.

[0065] 图7是用于说明本实施例的位移探索方向的设定单元113B的动作的图。 [0065] FIG. 7 is a diagram illustrating the operation of the displacement search direction setting means of the present embodiment for explaining 113B. 图7所示的方式与图4所示的方式不同之处在于,超声波束的射出方向相对于超声波收发面201a垂直。 Differs from the embodiment shown in FIG. 7 embodiment shown in FIG. 4 that the emission direction of the ultrasonic beam with respect to the perpendicular to the ultrasonic wave transmitting 201a.

[0066] 在拍摄被检体101的生物体组织的弹性图像时,首先,超声波收发部103通过相对于超声波收发面201a垂直地收发超声波束而获得与被检体101相关的信号。 [0066] When capturing an elasticity image of the living tissue of the subject body 101, first, the ultrasonic transmitting and receiving unit 103 to obtain a signal related to the subject 101 by transmitting and receiving ultrasonic beams 201a with respect to the perpendicular to the ultrasonic wave transmitting. 这里,本实施例的位移探索方向的设定单元113B,与组织位移方向205a〜205j —致地设定在关心区域303中预先设定的位移探索方向。 Here setting unit, the displacement search direction 113B of the embodiment of the present embodiment, the tissue displacement direction 205a~205j - induced displacement search direction is set in the region of interest 303 set in advance. 然后,位移探索方向的设定单元113B向位移运算部105 输出:选择超声波收发部103输出的信号中对应于所述修正后的位移探索方向罗列的信号的指令;和基于修正后的信号测量生物体组织的位移探索方向上的位移的指令。 Instruction unit 103 selects the output of the ultrasonic signal corresponding to the displacement of the search direction list corrected signal; and a signal based on measurement of the biological corrected: Then, the displacement search direction setting unit 113B is output to the displacement calculation unit 105 Exploration of the displacement body tissue displacement direction instruction.

[0067] S卩,从超声波收发部103的输出信号选择与组织位移方向205a〜205j对应的信号并执行弹性运算,则仅使关心区域303内的位移探索方向与组织位移方向一致。 [0067] S Jie, the output signal from the selection signal to the displacement direction of the ultrasonic tissue portion 103 and executes the corresponding elastic 205a~205j operation, then only the displacement search direction and the tissue displacement within the region of interest 303 in the same direction. 由此,根据本实施例,在使位移探索方向与组织位移方向一致时,即使不使超声波束偏转,也能使关心区域303中的位移探索方向和组织位移方向一致。 Thus, according to this embodiment, when the displacement of the tissue displacement direction of Exploration consistent direction, without the ultrasonic beam is deflected, the displacement also enables uniform tissue displacement search direction and the region of interest 303 in a direction. 其结果,除了与实施例1同样的效果外,还能简单地对应于生物体组织的复杂活动使位移探索方向与组织位移方向一致。 As a result, in addition to the same effects as in Example 1, but also it can simply correspond to the living tissue so that the complex activity coincides with the direction of displacement search direction and the tissue displacement.

[0068](实施例3) [0068] (Example 3)

[0069] 本实施例与半自动地指定组织位移方向的实施例1不同点在于,自动检测组织位 [0069] The present embodiment is that the semi-specified displacement direction of the tissue is different embodiments 1, automatic detection of a tissue site

11移方向。 11 shift direction. 由此,以该不同点为中心进行说明。 Thus, to the points of difference will be described.

[0070] 图8是表示图2的组织位移方向的检测单元113C动作例子的示意图。 [0070] FIG. 8 is a schematic diagram showing an operation example of 113C tissue displacement direction of the detection unit 2 of FIG. 图8的横轴表示与超声波收发面201a大致平行的方向的被检体坐标轴。 8 the horizontal axis represents a direction substantially parallel to 201a of the ultrasonic wave transmitting axis of the subject. 纵轴表示与超声波收发面201a大致垂直的方向的被检体坐标轴。 201a and the vertical axis represents a direction substantially perpendicular to the surface of the ultrasonic axis of the subject. 横轴以及纵轴各自的单位是毫米(mm)。 The horizontal axis and a longitudinal axis of each of millimeters (mm).

[0071] 如图8所示,组织位移方向的检测单元113C对施加压力给生物体组织前和后的断层像,基于与各像素对应的信号以宽范围执行相关运算。 [0071] 8, tissue displacement direction detecting means 113C of the tomographic image before applying pressure to the living tissue and after, correlation calculation is performed based on a signal corresponding to each pixel in a wide range. 更具体而言,检测单元113C取得对生物体组织施加压力前的信号601。 More specifically, the detection unit 601 acquires a signal 113C before applying pressure to the living tissue. 这里的信号601的位置是纵向1 [mm]、横向1 [mm]。 Here the position signal 601 is a longitudinal 1 [mm], the lateral 1 [mm]. 然后,检测单元113C通过相关处理检测对生物体组织施加压力时的信号601的移动目的地, 并基于检测结果判定组织位移方向。 Then, the detection unit 113C signal 601 is applied to the movement destination when the pressure on the body tissue through the correlation detection processing, and determines based on the detection result of the displacement direction of the tissue.

[0072] 例如,当检测单元113C检测到信号601的移动目的地为信号602的位置(纵向8[mm],横向l[mm])时,判断组织位移方向为纵向(例如0度)。 [0072] For example, when the detection unit detects the movement destination 113C signal 601 is a signal 602 of the position (longitudinal 8 [mm], the lateral l [mm]), the determined displacement direction longitudinal tissue (e.g., 0 degrees). 另外,当检测单元113C检测到信号601的移动目的地为信号603的位置(纵向l[mm],横向8[mm])时,判断组织位移方向为横向(例如90度)。 Further, when the detecting means detects the movement destination 113C signal 601 is a signal 603 of the position (longitudinal l [mm], the lateral 8 [mm]), the determined tissue displacement direction transverse (e.g., 90 degrees). 另外,当检测单元113C检测到信号601的移动目的地为信号604 的位置(纵向8[mm],横向8[mm])时,判断组织位移方向为斜向(例如45度)。 Further, when the detection unit 113C detects the movement destination position signal 601 into a signal 604 (the longitudinal direction 8 [mm], the lateral 8 [mm]), the determination of the displacement direction oblique tissue (e.g., 45 degrees). 检测单元113C按照坐标执行组织位移方向的检测处理,并检测各坐标的检测值平均后的值作为组织位移方向。 Value as a tissue displacement direction detecting means 113C according to the displacement direction of the coordinate detection process performed tissue, and detects the coordinates of each detected value of the average. 该组织位移方向被输出到关心区域的角度修正单元113E或位移探索方向的设定单元113B。 The tissue displacement direction is output to the region of interest angle correction unit 113E or displacement search direction setting unit 113B. 另外,使位移探索方向与组织位移方向一致地检测生物体组织的位移的处理与实施例1同样。 Further, the displacement search direction to the tissue so that the displacement direction of the displacement detection process consistent with living tissue in Example 1 the same embodiment.

[0073] S卩,当拍摄甲状腺等的弹性图像时,存在对甲状腺的组织在纵向施加压力而组织在横向发生位移的情况等,从而难以掌握组织位移方向。 [0073] S Jie when taking thyroid elasticity image, there is a displacement in the longitudinal direction of the pressure applied to tissue and on thyroid tissue in the case of lateral displacement, and the like, making it difficult to grasp tissue. 关于这一点,根据本实施例,由于可以客观且定量地自动检测组织位移方向,所以能进一步提高生物体组织的位移测量精度。 In this regard, according to the present embodiment, since it is possible to objectively and quantitatively automatically detect tissue displacement direction, the displacement measurement accuracy can be further improved living tissue.

[0074](实施例4) [0074] (Example 4)

[0075] 本实施例与实施例3的不同点在于,在自动检测组织位移方向时,利用血管的血流方向。 [0075] The present embodiment differs from the third embodiment in that the automatic detection of tissue displacement direction, the direction of blood flow using the vessel. 由此,以不同点为中心进行说明。 Thus, different points will be mainly described.

[0076] 本实施例的超声波诊断装置如图1所示,设有多普勒像构成部900。 The ultrasonic diagnostic apparatus [0076] according to the present embodiment shown in Figure 1, the Doppler image producing section 900 is provided. 多普勒像构成部900基于从超声波收发部103取入的时间序列的接收信号对多普勒偏移进行运算,由该多普勒偏移构成多普勒像(例如彩色血流像)。 Doppler image producing section 900 calculates the Doppler shift from the received signal sequence based on the ultrasonic transmitting and receiving unit 103 of the time taken by the Doppler shift constituting a Doppler image (e.g., color flow image). 然后,本实施例的位移探索方向的设定单元113B基于由多普勒像构成部900可判定的血流方向,确定与组织位移方向一致的位移探索方向。 Then, the displacement search direction setting means of the present embodiment is based on blood flow direction 113B by the Doppler image configuration determination section 900 may, consistent with the tissue displacement direction of displacement determined search direction.

[0077] 图9是用于说明本实施例的位移探索方向的设定单元113B的动作的图。 [0077] FIG. 9 is a diagram illustrating the operation of the displacement search direction setting means of the present embodiment for explaining 113B. 首先,图9A是将彩色血流像重叠于图3的血管204来显示的图。 First, FIG. 9A is a color blood flow image is superimposed on the blood vessel 204 of FIG. 3 to be displayed. 这里的彩色血流像从多普勒像构成部900经图像合成部111被输出到图像显示器112。 Here Doppler color flow image from the image producing unit 900 via the image combining unit 111 is output to the image display 112.

[0078] 图9B是表示基于血流方向与组织位移方向一致地设定位移探索方向的形态的示意图。 [0078] FIG 9B is a schematic diagram showing the form of a displacement search direction set to be identical to the direction of blood flow, tissue displacement direction. 组织位移方向的检测单元113C基于图9A所示彩色血流像检测血流方向,将与该血流方向正交的方向判定为组织位移方向。 Tissue displacement direction detecting unit 113C based on the color flow image detected blood flow direction shown in FIG. 9A, a direction orthogonal to the direction of blood flow is determined that the tissue displacement direction. 位移探索方向的设定单元113B与由检测单元113C 判定的组织位移方向一致地确定位移探索方向。 Setting means 113B of the displacement search direction is determined by the tissue displacement direction detecting means 113C determines the displacement search direction in unison. 另外,关心区域303的设定处理或旋转修正处理、按照位移探索方向使超声波束方向偏转的处理等与实施例1相同。 Further, the region of interest setting process 303 or rotational correction processing, in accordance with the displacement search direction to the deflection direction of the ultrasonic beam processing same as in Example 1. 另外,如在实施例2中说明的那样,也可以采用使关心区域303的位移探索方向与组织位移方向一致的处理。 Further, as described above in Example 2, the region of interest may be that the same displacement search direction 303 with a tissue displacement direction of the process employed.

[0079] 根据本实施例,由于能够基于从多普勒血流像检测出的血流方向自动判定组织位移方向,所以使组织位移方向与位移探索方向一致的操作变得简单。 [0079] The operation of the present embodiment, since the tissue displacement direction is automatically determined based on the direction of blood flow image from the Doppler detected, so that the tissue displacement direction coincides with the direction of displacement becomes easy to explore. 例如,即使血管以弯曲复杂的状态存在于被检体101中时,也能基于与该血管相关的多普勒血流像简单地确定位移探索方向。 For example, even when a blood vessel in a curved state in the complex in the subject 101, can be easily determined search direction based on the displacement associated with the vascular Doppler image.

[0080](实施例5) [0080] (Example 5)

[0081] 本实施例与使通过探头102收发的超声波束偏转的实施例1的不同点在于,在使位移探索方向与组织位移方向一致时,用手动调整探头102的倾斜度。 [0081] Example 1 of the present embodiment differs from the embodiment of the probe passing through the transmitting and receiving an ultrasonic beam deflector 102 is characterized in that the displacement direction of the tissue displacement Exploration same direction, with the manual adjustment of the inclination of the probe 102. 由此,以不同点为中心进行说明。 Thus, different points will be mainly described.

[0082] 若改变探头102的倾斜度,则探头102的超声波收发面201a的倾斜角度改变,因此能够调整由超声波收发面201a收发的超声波束的方向。 [0082] When changing the inclination of the probe 102, the inclination angle of the ultrasonic probe 102 of the altered surface 201a, it is possible to adjust the direction of the ultrasonic beam by the ultrasonic transmitting and receiving surface 201a. 即,当在超声波束方向设定位移探索方向的情况下,通过调整探头102的倾斜度,从而能够使位移探索方向与组织位移方 That is, in the case where the displacement search direction is set in the ultrasonic beam direction, by adjusting the inclination of the probe 102, thereby enabling the displacement search direction and the tissue displacement direction

向一致。 To the agreement.

[0083] 但是,若凭借经验或直觉调整探头102的倾斜度,则使位移探索方向与组织位移方向一致的操作变得繁杂。 [0083] However, if by virtue of experience and intuition to adjust the inclination of the probe 102, so that the displacement search direction and the tissue displacement direction is consistent with the operation becomes complicated. 这里,图2的引导信息的生成单元113F生成表示位移探索方向与组织位移方向一致时的探头102的倾斜方向或倾斜角度的引导信息,并将其显示于图像显不器112。 Here, the guidance information generation unit 113F of FIG. 2 generates the probe 102 or the oblique direction inclined angle guidance information when the displacement search direction matches the tissue displacement direction, and displays it on the image display device 112 is not.

[0084] 图10是表示探头102的倾斜方向和倾斜角度的引导信息的表示例子。 [0084] FIG. 10 is a diagram showing an example of the guidance information and the tilt direction of the probe 102 of the tilt angle. 另外,配置有实时检测探头102的位置或倾斜度的位置传感器。 Further, the position sensor is arranged or inclination of the probe 102 of the real-time detection. 引导信息的生成单元113F例如图10 所示,生成并显示:与被检体101的体表接触的探头102的示意图像920 ;表示与探头102的超声波束方向一致地设定的位移探索方向的箭头图像921 ;表示被检体101的生物体组织的组织位移方向的箭头图像922 ;表示位移探索方向与组织位移方向一致时的探头102的倾斜方向的引导图像923。 Guide information generating means 10 shown in FIG. 113F e.g., generate and display: a schematic view of the probe in contact with the body surface of the subject 101 102 920 image; represents a displacement search direction and the ultrasonic beam direction of the probe 102 is set in correspondence arrow image 921; image displacement direction of the arrow represents the organization of the living tissue 101 of the subject 922; represents oblique direction guide image 923 when the probe 102 is displaced to explore the tissue displacement direction coincides with the direction. 另外,也可以显示表示与位移探索方向和组织位移方向之间的偏差对应的修正角e的角度信息924。 Further, the display may be represented with the deviation between the displacement direction and the displacement search direction corresponding to the correction angle information organization angle e of 924. 这里的修正角e也是表示探头102的倾斜角度的引导fn息。 Here e is the correction angle information showing the inclination angle of the guide fn probe 102.

[0085] 根据本实施例,引导图像923或角度信息924等的引导信息成为对调整探头102 的倾斜角使位移探索方向和组织位移方向一致的作业起辅助作用的客观且定量的指标。 [0085] become an objective and quantitative index of adjusting the inclination angle of the probe 102 to make displacement search direction and the tissue displacement in the same direction which aid operation guidance information according to the present embodiment, the guide image 923 or 924 angle information and the like. 由此,操作者由于能通过视觉掌握探头102的目标倾斜方向,所以能可靠且简单地实施使位移探索方向与组织位移方向一致的操作。 Accordingly, since the operator can visually grasp the target tilting direction of the probe 102, it is possible to reliably and easily implemented with the displacing tissue displacement search direction coincides with the direction of operation. 其结果,提高了生物体组织的位移的测量精度,并且提高了使用装置的方便性。 As a result, improve the measurement accuracy of the displacement of the living tissue, and improving the convenience of use of the device.

[0086] 另外,如图11所示,引导信息的生成单元113F在关心区域925上并排显示:表示在位移探索方向与垂直方向之间形成的角度9工的角度信息926 ;和在位移探索方向与组织位移方向之间形成的角度9 2的角度信息927等。 [0086] Further, the generation unit 11, the guide information displayed side by side on 113F region of interest 925: angle information indicates the angle formed between the displacement search direction to the vertical direction of the work 9 926; and the displacement search direction angle formed between the tissue displacement direction angle information 92 and 927 and the like. 由此,操作者能相对地且在视觉上掌握被检体101的关心区域925上的位移探索方向与组织位移方向。 Thus, the operator can grasp being displaced relative to the search direction and the tissue displacement direction of the region of interest 925 of the subject 101 visually.

[0087] 以上,根据本实施方式,不受压迫生物体组织的方向或压迫生物体组织的面的形状等限制,能获得忠实再现生物体组织的形变或硬度等的性状的高品质弹性图像。 [0087] The above embodiment according to the present embodiment, the regulating surface shape without compression or pressure direction of the living tissue of the living tissue can be obtained a high-quality elasticity image faithful reproduction of living tissue such traits strain or hardness.

[0088] 另外,如图1或图2等所示,以块为单位说明了本实施方式的超声波摄像所需的控制功能,但也可以将各控制功能集成为超声波摄像程序,通过控制用的计算机执行该超声波摄像程序。 [0088] Further, FIG. 1 or the like as shown in FIG. 2, described in units of blocks required for ultrasonic imaging control function of the present embodiment, but may also be integrated into the controls of the ultrasound imaging procedure, by controlling the the ultrasonic imaging computer to execute the program. 例如,超声波摄像程序使控制用计算机执行以下步骤:与被检体101的生物体组织发生位移的方向一致地设定位移的探索方向的设定步骤;向与被检体101之间收发超声波的探头102供给送波用的驱动信号的步骤;对从探头102输出的接收信号进行处理的步骤;由接收处理后的信号对所述探索方向上的位移进行测量的步骤;基于该位移的测量值构成弹性图像的步骤;和显示该弹性图像的步骤。 For example, an ultrasonic imaging control program causes the computer to perform the following steps: setting step of setting a displacement search direction coincides with the direction of displacement of the living tissue 101 of the subject; the subject and received between the ultrasonic wave 101 step wave transmission probe 102 is supplied with a driving signal; a step of processing the received signals outputted from the probe 102; step of measuring the displacement in the direction indicated by exploring signal reception processing; based on the measured value of the displacement step constituting the elasticity image; and a step of displaying the elastic image.

[0089] 如上所述,对应用了本发明的一实施方式的超声波诊断装置进行了说明,但采用了本发明的超声波诊断装置在不脱离其精神或主要特征的情况下也可以通过其他各种方式来实施。 [0089] As described above, the ultrasonic diagnostic apparatus applied to an embodiment of the present invention has been described, but using the ultrasonic diagnostic apparatus according to the present invention without departing from the spirit or essential characteristics thereof may be a variety of other ways. 因此,所述实施方式所有的点都只是例示,不能解释为限定本发明的范围。 Thus, all the points of the embodiments are merely illustrative and not to be construed as limiting the scope of the invention. 艮口, 本发明的范围包括属于同等范围的变形或变更。 Gen mouth, the scope of the present invention includes modifications and changes belonging to the scope equivalent.

Claims (13)

  1. 一种超声波诊断装置,包括:超声波探头,其与被检体之间收发超声波;发送单元,其向该超声波探头供给送波用的驱动信号;接收单元,其对从所述超声波探头输出的接收信号进行处理;弹性像构成单元,其基于根据该接收单元的输出信号测量的生物体组织的位移来构成弹性图像;和显示单元,其显示所述弹性图像,该超声波诊断装置具有:组织位移方向的检测单元,其检测所述生物体组织发生位移的方向;和位移探索方向设定单元,其在所述超声波探头的超声波束方向上设定所述生物体组织的位移的探索方向时,向所述发送单元或所述接收单元输出使所述超声波束与检测出的所述组织位移方向一致地偏转的指令,所述弹性像构成单元测量所述生物体组织在偏转后的超声波束方向的位移,构成所述弹性图像。 An ultrasonic diagnostic apparatus comprising: an ultrasonic probe, an ultrasonic wave transceiver which is the subject; receiving means for receiving, from which an output of the ultrasonic probe; transmitting unit that supplies a driving signal to the ultrasonic probe with transmission waves signal processing; elasticity image constituting unit based on the displacement of the living tissue of the measured output signal to the receiving unit configured elasticity image; and a display unit that displays the elasticity image, the ultrasonic diagnostic apparatus comprising: a tissue displacement direction detection means for detecting the direction of displacement of the living body tissue; and when the displacement search direction setting means for setting a displacement search direction of the living body tissue in the ultrasonic beam direction of the ultrasonic probe, the the transmitting unit or the receiving unit outputs a command to the displacement direction of the ultrasonic beam to the tissue detected consistently deflected constituting the elasticity image measurement unit of the ultrasonic beam direction of the living tissue in the post-deflection displacement constituting the elastic image.
  2. 2.根据权利要求1所述的超声波诊断装置,其特征在于,包括:关心区域的设定单元,其根据所述被检体的生物体组织,设定所述位移的探索方向被预先确定了的关心区域;和关心区域的角度修正单元,其对所述关心区域进行旋转修正,使所述探索方向与所述组织位移方向一致,所述位移探索方向设定单元向所述发送单元或所述接收单元输出:使所述超声波束与所述旋转修正后的关心区域的所述探索方向一致地进行偏转的指令。 The ultrasonic diagnostic apparatus according to claim 1, characterized by comprising: region of interest setting means, based on the living tissue of the subject, setting the displacement search direction is determined in advance region of interest; angle correcting unit and a region of interest, that performs rotation correction on the region of interest to explore the same direction and the tissue displacement direction, the displacement search direction setting unit to the transmitting unit or the said receiver output: the ultrasonic beam is deflected in correspondence with the command search direction of the region of interest after the rotation correction.
  3. 3.根据权利要求2所述的超声波诊断装置,其特征在于,所述关心区域的设定单元根据所述被检体的生物体组织设定矩形或扇形的关心区域。 The ultrasonic diagnostic apparatus according to claim 2, wherein said interest region setting means is set to be rectangular or sector according to the living tissue specimen region of interest.
  4. 4.根据权利要求1所述的超声波诊断装置,其特征在于,所述位移探索方向设定单元向所述弹性像构成单元输出:选择从所述接收单元输出的信号中对应于所述探索方向罗列的信号的指令;和基于该选择后的信号计算所述探索方向的位移的指令。 4. The ultrasonic diagnostic apparatus according to claim 1, wherein the displacement search direction setting unit to the elasticity image output unit configured: to select the corresponding signal from the output of the receiving unit to the search direction list command signal; and a signal after the calculation based on the instruction to select the direction of displacement of the exploration.
  5. 5.根据权利要求1所述的超声波诊断装置,其特征在于,包括:关心区域的设定单元,其根据所述被检体的生物体组织设定所述位移的探索方向被预先确定了的关心区域;和关心区域的角度修正单元,其对所述关心区域进行旋转修正,使所述探索方向与所述组织位移方向一致,所述位移探索方向设定单元向所述弹性像构成单元输出:选择从所述接收单元输出的信号中与所述旋转修正后的关心区域的所述探索方向对应地罗列的信号的指令;和基于该选择后的信号计算所述探索方向的位移的指令。 The ultrasonic diagnostic apparatus according to claim 1, characterized by comprising: region of interest setting unit, which is determined in advance in accordance with said set of said biological tissue specimen displacement search direction region of interest; and a region of interest angle correction unit that performs rotation correction on the region of interest to explore the same direction and the tissue displacement direction, the displacement search direction setting means to the image output unit configured elastically : selection instruction signal from the receiver output in the search direction of the region of interest after the rotation correction corresponding to the signal list; command and calculating the search direction based on the selection signal displacement.
  6. 6.根据权利要求5所述的超声波诊断装置,其特征在于,所述关心区域的设定单元根据所述被检体的生物体组织设定矩形或扇形的关心区域。 The ultrasonic diagnostic apparatus according to claim 5, wherein said interest region setting means is set to be rectangular or sector according to the living tissue specimen region of interest.
  7. 7.根据权利要求1所述的超声波诊断装置,其特征在于,所述位移探索方向设定单元将在所述生物体组织设定的关心区域分割为多个微小矩形关心区域,对各个所述微小矩形关心区域的所述组织位移方向进行确定,并与该组织位移方向一致地设定所述探索方向。 The ultrasonic diagnostic apparatus according to claim 1, wherein the displacement search direction setting unit is divided into a plurality of minute rectangular regions of interest in the living body tissue region of interest set for each of the slight displacement direction of a rectangular region of interest of the tissue is determined, and setting the search direction consistent with the direction of displacement of the organization.
  8. 8.根据权利要求1所述的超声波诊断装置,其特征在于,所述组织位移方向的检测单元,将与所述生物体组织相关的断层像上被指定的两个基准点间的线段的正交方向判定为所述组织位移方向。 The ultrasonic diagnostic apparatus according to claim 1, characterized in that the positive line between the tissue displacement direction detecting means, associated with the upper tomographic image of the living tissue is two reference points designated cross direction is determined that the tissue displacement direction.
  9. 9.根据权利要求1所述的超声波诊断装置,其特征在于,所述组织位移方向的检测单元,执行所述生物体组织的压迫前的断层像和所述生物体组织的压迫中的断层像的相关处理,求得所述断层像上的部位的移动方向,将该移动方向判定为所述组织位移方向。 The ultrasonic diagnostic apparatus according to claim 1, wherein the tissue displacement direction detecting means, the tomographic image compression performed before the compression of the living body tissue and the body tissue tomographic image the correlation process to obtain the moving direction of the upper portion of the tomographic image, it is determined that the moving direction of the tissue displacement direction.
  10. 10.根据权利要求1所述的超声波诊断装置,其特征在于,所述组织位移方向的检测单元,通过多普勒运算处理根据所述接收单元的输出信号求得血流方向,将与所述血流方向正交的方向判定为所述组织位移方向。 The ultrasonic diagnostic apparatus according to claim 1, wherein the tissue displacement direction detecting means, the arithmetic processing by the Doppler signal based on an output of the receiving unit to obtain the blood flow direction, with the perpendicular to the direction of blood flow direction is determined that the tissue displacement direction.
  11. 11.根据权利要求1所述的超声波诊断装置,其特征在于,所述显示单元显示引导信息,该引导信息表示在所述超声波探头的超声波束方向上设定所述探索方向时,所述超声波束方向与所述组织位移方向一致时的所述超声波探头的倾斜方向或倾斜角度。 11. The ultrasonic diagnostic apparatus according to claim 1, wherein the display unit displays the guide information, the guide information indicating the search direction is set in the ultrasonic beam direction of the ultrasonic probe, the ultrasonic the inclination direction of the ultrasonic probe when the beam direction coincides with the direction of displacement or the inclination angle of the tissue.
  12. 12.根据权利要求1所述的超声波诊断装置,其特征在于,所述显示单元显示表示所述组织位移方向的箭头图像、表示所述位移的探索方向的箭头图像、和表示所述超声波探头的超声波束方向的箭头图像中的至少一个。 The ultrasonic diagnostic apparatus according to claim 1, wherein the display unit displays an arrow image indicating the tissue displacement direction, an arrow image representing the displacement search direction, and the ultrasonic probe represents ultrasonic beam direction at least one of the arrow images.
  13. 13.根据权利要求1所述的超声波诊断装置,其特征在于,所述显示单元显示形成在所述组织位移方向和所述位移的探索方向之间的角度。 The ultrasonic diagnostic apparatus according to claim 1, wherein the display unit displays the angle formed between the search direction and the tissue displacement direction of the displacement.
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